如何将获取的数据分配给React状态

import React, { useState } from 'react';

const MyComponent = () => {
  const [data, setData] = useState(null);

  // 其他组件代码...

  return (
    // 组件的JSX代码...
  );
};

export default MyComponent;

import React, { useState, useEffect } from 'react';

const MyComponent = () => {
  const [data, setData] = useState(null);

  useEffect(() => {
    fetchData();
  }, []);

  const fetchData = async () => {
    try {
      const response = await fetch('https://api.example.com/data');
      const jsonData = await response.json();
      setData(jsonData);
    } catch (error) {
      console.error('Error fetching data:', error);
    }
  };

  // 其他组件代码...

  return (
    // 组件的JSX代码...
  );
};

export default MyComponent;

const fetchData = async () => {
  try {
    const response = await fetch('https://api.example.com/data');
    const jsonData = await response.json();
    setData(jsonData); // 将获取的数据分配给React状态
  } catch (error) {
    console.error('Error fetching data:', error);
  }
};

const MyComponent = () => {
  const [data, setData] = useState(null);

  useEffect(() => {
    fetchData();
  }, []);

  // 其他组件代码...

  return (
    <div>
      {data ? (
        <div>
          {/* 使用状态数据渲染内容 */}
          <p>Data: {data}</p>
        </div>
      ) : (
        <p>Loading data...</p>
      )}
    </div>
  );
};